Mop assembly



FIG. 1 is a front view of a mop assembly showing our new design;

FIG. 2 is a back view thereof;

FIG. 3 is a left side elevation view thereof, the right side elevation view being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front isometric view thereof; and,

FIG. 6 is a rear isometric view thereof.

The broken lines in the drawings show features of the mop assembly that form no part of the claimed design. 

CLAIM The ornamental design for a mop assembly, as shown and described. 